package com.lbc.udp;

import java.net.DatagramPacket;
import java.net.DatagramSocket;
import java.net.InetAddress;

//  不需要连接服务器
public class UdpClientDemo01 {
    public static void main(String[] args) throws Exception {
        //1.建立一个socket
        DatagramSocket socket = new DatagramSocket(8080);

        //2.建个包
        String msg = "你好啊，服务器";

        //  发送给谁
        InetAddress localhost = InetAddress.getByName("localhost");
        int port = 9090;
        //  数据，长度始终，要发送给谁
        DatagramPacket packet = new DatagramPacket(msg.getBytes(), 0, msg.getBytes().length,localhost,port);

        //3.发送包
        socket.send(packet);

        //4.关闭源
        socket.close();
    }
}
